/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.naming;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;
import javax.naming.Binding;
import javax.naming.CompositeName;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.LinkRef;
import javax.naming.Name;
import javax.naming.NameAlreadyBoundException;
import javax.naming.NameClassPair;
import javax.naming.NameNotFoundException;
import javax.naming.NameParser;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.NotContextException;
import javax.naming.OperationNotSupportedException;
import javax.naming.Reference;
import javax.naming.Referenceable;
import javax.naming.spi.NamingManager;
/**
* Catalina JNDI Context implementation.
*
* @author Remy Maucherat
*/
public class NamingContext implements Context {
// -------------------------------------------------------------- Constants
/**
* Name parser for this context.
*/
protected static final NameParser nameParser = new NameParserImpl();
private static final org.apache.juli.logging.Log log = org.apache.juli.logging.LogFactory
.getLog(NamingContext.class);
// ----------------------------------------------------------- Constructors
/**
* Builds a naming context.
*
* @param env
* The environment to use to construct the naming context
* @param name
* The name of the associated Catalina Context
*/
public NamingContext(Hashtable<String, Object> env, String name) throws NamingException {
this.bindings = new HashMap<String, NamingEntry>();
this.env = new Hashtable<String, Object>();
this.name = name;
// Populating the environment hashtable
if (env != null) {
Enumeration<String> envEntries = env.keys();
while (envEntries.hasMoreElements()) {
String entryName = envEntries.nextElement();
addToEnvironment(entryName, env.get(entryName));
}
}
}
/**
* Builds a naming context.
*
* @param env
* The environment to use to construct the naming context
* @param name
* The name of the associated Catalina Context
* @param bindings
* The initial bindings for the naming context
*/
public NamingContext(Hashtable<String, Object> env, String name, HashMap<String, NamingEntry> bindings)
throws NamingException {
this(env, name);
this.bindings = bindings;
}
// ----------------------------------------------------- Instance Variables
/**
* Environment.
*/
protected Hashtable<String, Object> env;
/**
* The string manager for this package.
*/
protected static final StringManager sm = StringManager.getManager(Constants.Package);
/**
* Bindings in this Context.
*/
protected HashMap<String, NamingEntry> bindings;
/**
* Name of the associated Catalina Context.
*/
protected String name;
/**
* Determines if an attempt to write to a read-only context results in an
* exception or if the request is ignored.
*/
private boolean exceptionOnFailedWrite = true;
public boolean getExceptionOnFailedWrite() {
return exceptionOnFailedWrite;
}
public void setExceptionOnFailedWrite(boolean exceptionOnFailedWrite) {
this.exceptionOnFailedWrite = exceptionOnFailedWrite;
}
// -------------------------------------------------------- Context Methods
/**
* Retrieves the named object. If name is empty, returns a new instance of
* this context (which represents the same naming context as this context,
* but its environment may be modified independently and it may be accessed
* concurrently).
*
* @param name
* the name of the object to look up
* @return the object bound to name
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Object lookup(Name name) throws NamingException {
return lookup(name, true);
}
/**
* Retrieves the named object.
*
* @param name
* the name of the object to look up
* @return the object bound to name
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Object lookup(String name) throws NamingException {
return lookup(new CompositeName(name), true);
}
/**
* Binds a name to an object. All intermediate contexts and the target
* context (that named by all but terminal atomic component of the name)
* must already exist.
*
* @param name
* the name to bind; may not be empty
* @param obj
* the object to bind; possibly null
* @exception NameAlreadyBoundException
* if name is already bound
* @exception javax.naming.directory.InvalidAttributesException
* if object did not supply all mandatory attributes
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public void bind(Name name, Object obj) throws NamingException {
bind(name, obj, false);
}
/**
* Binds a name to an object.
*
* @param name
* the name to bind; may not be empty
* @param obj
* the object to bind; possibly null
* @exception NameAlreadyBoundException
* if name is already bound
* @exception javax.naming.directory.InvalidAttributesException
* if object did not supply all mandatory attributes
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public void bind(String name, Object obj) throws NamingException {
bind(new CompositeName(name), obj);
}
/**
* Binds a name to an object, overwriting any existing binding. All
* intermediate contexts and the target context (that named by all but
* terminal atomic component of the name) must already exist.
* <p>
* If the object is a DirContext, any existing attributes associated with
* the name are replaced with those of the object. Otherwise, any existing
* attributes associated with the name remain unchanged.
*
* @param name
* the name to bind; may not be empty
* @param obj
* the object to bind; possibly null
* @exception javax.naming.directory.InvalidAttributesException
* if object did not supply all mandatory attributes
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public void rebind(Name name, Object obj) throws NamingException {
bind(name, obj, true);
}
/**
* Binds a name to an object, overwriting any existing binding.
*
* @param name
* the name to bind; may not be empty
* @param obj
* the object to bind; possibly null
* @exception javax.naming.directory.InvalidAttributesException
* if object did not supply all mandatory attributes
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public void rebind(String name, Object obj) throws NamingException {
rebind(new CompositeName(name), obj);
}
/**
* Unbinds the named object. Removes the terminal atomic name in name from
* the target context--that named by all but the terminal atomic part of
* name.
* <p>
* This method is idempotent. It succeeds even if the terminal atomic name
* is not bound in the target context, but throws NameNotFoundException if
* any of the intermediate contexts do not exist.
*
* @param name
* the name to bind; may not be empty
* @exception NameNotFoundException
* if an intermediate context does not exist
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public void unbind(Name name) throws NamingException {
if (!checkWritable()) {
return;
}
while ((!name.isEmpty()) && (name.get(0).length() == 0))
name = name.getSuffix(1);
if (name.isEmpty())
throw new NamingException(sm.getString("namingContext.invalidName"));
NamingEntry entry = bindings.get(name.get(0));
if (entry == null) {
throw new NameNotFoundException(sm.getString("namingContext.nameNotBound", name, name.get(0)));
}
if (name.size() > 1) {
if (entry.type == NamingEntry.CONTEXT) {
((Context) entry.value).unbind(name.getSuffix(1));
} else {
throw new NamingException(sm.getString("namingContext.contextExpected"));
}
} else {
bindings.remove(name.get(0));
}
}
/**
* Unbinds the named object.
*
* @param name
* the name to bind; may not be empty
* @exception NameNotFoundException
* if an intermediate context does not exist
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public void unbind(String name) throws NamingException {
unbind(new CompositeName(name));
}
/**
* Binds a new name to the object bound to an old name, and unbinds the old
* name. Both names are relative to this context. Any attributes associated
* with the old name become associated with the new name. Intermediate
* contexts of the old name are not changed.
*
* @param oldName
* the name of the existing binding; may not be empty
* @param newName
* the name of the new binding; may not be empty
* @exception NameAlreadyBoundException
* if newName is already bound
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public void rename(Name oldName, Name newName) throws NamingException {
Object value = lookup(oldName);
bind(newName, value);
unbind(oldName);
}
/**
* Binds a new name to the object bound to an old name, and unbinds the old
* name.
*
* @param oldName
* the name of the existing binding; may not be empty
* @param newName
* the name of the new binding; may not be empty
* @exception NameAlreadyBoundException
* if newName is already bound
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public void rename(String oldName, String newName) throws NamingException {
rename(new CompositeName(oldName), new CompositeName(newName));
}
/**
* Enumerates the names bound in the named context, along with the class
* names of objects bound to them. The contents of any subcontexts are not
* included.
* <p>
* If a binding is added to or removed from this context, its effect on an
* enumeration previously returned is undefined.
*
* @param name
* the name of the context to list
* @return an enumeration of the names and class names of the bindings in
* this context. Each element of the enumeration is of type
* NameClassPair.
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public NamingEnumeration<NameClassPair> list(Name name) throws NamingException {
// Removing empty parts
while ((!name.isEmpty()) && (name.get(0).length() == 0))
name = name.getSuffix(1);
if (name.isEmpty()) {
return new NamingContextEnumeration(bindings.values().iterator());
}
NamingEntry entry = bindings.get(name.get(0));
if (entry == null) {
throw new NameNotFoundException(sm.getString("namingContext.nameNotBound", name, name.get(0)));
}
if (entry.type != NamingEntry.CONTEXT) {
throw new NamingException(sm.getString("namingContext.contextExpected"));
}
return ((Context) entry.value).list(name.getSuffix(1));
}
/**
* Enumerates the names bound in the named context, along with the class
* names of objects bound to them.
*
* @param name
* the name of the context to list
* @return an enumeration of the names and class names of the bindings in
* this context. Each element of the enumeration is of type
* NameClassPair.
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public NamingEnumeration<NameClassPair> list(String name) throws NamingException {
return list(new CompositeName(name));
}
/**
* Enumerates the names bound in the named context, along with the objects
* bound to them. The contents of any subcontexts are not included.
* <p>
* If a binding is added to or removed from this context, its effect on an
* enumeration previously returned is undefined.
*
* @param name
* the name of the context to list
* @return an enumeration of the bindings in this context. Each element of
* the enumeration is of type Binding.
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public NamingEnumeration<Binding> listBindings(Name name) throws NamingException {
// Removing empty parts
while ((!name.isEmpty()) && (name.get(0).length() == 0))
name = name.getSuffix(1);
if (name.isEmpty()) {
return new NamingContextBindingsEnumeration(bindings.values().iterator(), this);
}
NamingEntry entry = bindings.get(name.get(0));
if (entry == null) {
throw new NameNotFoundException(sm.getString("namingContext.nameNotBound", name, name.get(0)));
}
if (entry.type != NamingEntry.CONTEXT) {
throw new NamingException(sm.getString("namingContext.contextExpected"));
}
return ((Context) entry.value).listBindings(name.getSuffix(1));
}
/**
* Enumerates the names bound in the named context, along with the objects
* bound to them.
*
* @param name
* the name of the context to list
* @return an enumeration of the bindings in this context. Each element of
* the enumeration is of type Binding.
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public NamingEnumeration<Binding> listBindings(String name) throws NamingException {
return listBindings(new CompositeName(name));
}
/**
* Destroys the named context and removes it from the namespace. Any
* attributes associated with the name are also removed. Intermediate
* contexts are not destroyed.
* <p>
* This method is idempotent. It succeeds even if the terminal atomic name
* is not bound in the target context, but throws NameNotFoundException if
* any of the intermediate contexts do not exist.
*
* In a federated naming system, a context from one naming system may be
* bound to a name in another. One can subsequently look up and perform
* operations on the foreign context using a composite name. However, an
* attempt destroy the context using this composite name will fail with
* NotContextException, because the foreign context is not a "subcontext" of
* the context in which it is bound. Instead, use unbind() to remove the
* binding of the foreign context. Destroying the foreign context requires
* that the destroySubcontext() be performed on a context from the foreign
* context's "native" naming system.
*
* @param name
* the name of the context to be destroyed; may not be empty
* @exception NameNotFoundException
* if an intermediate context does not exist
* @exception NotContextException
* if the name is bound but does not name a context, or does
* not name a context of the appropriate type
*/
@Override
public void destroySubcontext(Name name) throws NamingException {
if (!checkWritable()) {
return;
}
while ((!name.isEmpty()) && (name.get(0).length() == 0))
name = name.getSuffix(1);
if (name.isEmpty())
throw new NamingException(sm.getString("namingContext.invalidName"));
NamingEntry entry = bindings.get(name.get(0));
if (entry == null) {
throw new NameNotFoundException(sm.getString("namingContext.nameNotBound", name, name.get(0)));
}
if (name.size() > 1) {
if (entry.type == NamingEntry.CONTEXT) {
((Context) entry.value).destroySubcontext(name.getSuffix(1));
} else {
throw new NamingException(sm.getString("namingContext.contextExpected"));
}
} else {
if (entry.type == NamingEntry.CONTEXT) {
((Context) entry.value).close();
bindings.remove(name.get(0));
} else {
throw new NotContextException(sm.getString("namingContext.contextExpected"));
}
}
}
/**
* Destroys the named context and removes it from the namespace.
*
* @param name
* the name of the context to be destroyed; may not be empty
* @exception NameNotFoundException
* if an intermediate context does not exist
* @exception NotContextException
* if the name is bound but does not name a context, or does
* not name a context of the appropriate type
*/
@Override
public void destroySubcontext(String name) throws NamingException {
destroySubcontext(new CompositeName(name));
}
/**
* Creates and binds a new context. Creates a new context with the given
* name and binds it in the target context (that named by all but terminal
* atomic component of the name). All intermediate contexts and the target
* context must already exist.
*
* @param name
* the name of the context to create; may not be empty
* @return the newly created context
* @exception NameAlreadyBoundException
* if name is already bound
* @exception javax.naming.directory.InvalidAttributesException
* if creation of the sub-context requires specification of
* mandatory attributes
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Context createSubcontext(Name name) throws NamingException {
if (!checkWritable()) {
return null;
}
NamingContext newContext = new NamingContext(env, this.name);
bind(name, newContext);
newContext.setExceptionOnFailedWrite(getExceptionOnFailedWrite());
return newContext;
}
/**
* Creates and binds a new context.
*
* @param name
* the name of the context to create; may not be empty
* @return the newly created context
* @exception NameAlreadyBoundException
* if name is already bound
* @exception javax.naming.directory.InvalidAttributesException
* if creation of the sub-context requires specification of
* mandatory attributes
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Context createSubcontext(String name) throws NamingException {
return createSubcontext(new CompositeName(name));
}
/**
* Retrieves the named object, following links except for the terminal
* atomic component of the name. If the object bound to name is not a link,
* returns the object itself.
*
* @param name
* the name of the object to look up
* @return the object bound to name, not following the terminal link (if
* any).
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Object lookupLink(Name name) throws NamingException {
return lookup(name, false);
}
/**
* Retrieves the named object, following links except for the terminal
* atomic component of the name.
*
* @param name
* the name of the object to look up
* @return the object bound to name, not following the terminal link (if
* any).
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Object lookupLink(String name) throws NamingException {
return lookup(new CompositeName(name), false);
}
/**
* Retrieves the parser associated with the named context. In a federation
* of namespaces, different naming systems will parse names differently.
* This method allows an application to get a parser for parsing names into
* their atomic components using the naming convention of a particular
* naming system. Within any single naming system, NameParser objects
* returned by this method must be equal (using the equals() test).
*
* @param name
* the name of the context from which to get the parser
* @return a name parser that can parse compound names into their atomic
* components
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public NameParser getNameParser(Name name) throws NamingException {
while ((!name.isEmpty()) && (name.get(0).length() == 0))
name = name.getSuffix(1);
if (name.isEmpty())
return nameParser;
if (name.size() > 1) {
Object obj = bindings.get(name.get(0));
if (obj instanceof Context) {
return ((Context) obj).getNameParser(name.getSuffix(1));
} else {
throw new NotContextException(sm.getString("namingContext.contextExpected"));
}
}
return nameParser;
}
/**
* Retrieves the parser associated with the named context.
*
* @param name
* the name of the context from which to get the parser
* @return a name parser that can parse compound names into their atomic
* components
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public NameParser getNameParser(String name) throws NamingException {
return getNameParser(new CompositeName(name));
}
/**
* Composes the name of this context with a name relative to this context.
* <p>
* Given a name (name) relative to this context, and the name (prefix) of
* this context relative to one of its ancestors, this method returns the
* composition of the two names using the syntax appropriate for the naming
* system(s) involved. That is, if name names an object relative to this
* context, the result is the name of the same object, but relative to the
* ancestor context. None of the names may be null.
*
* @param name
* a name relative to this context
* @param prefix
* the name of this context relative to one of its ancestors
* @return the composition of prefix and name
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Name composeName(Name name, Name prefix) throws NamingException {
prefix = (Name) prefix.clone();
return prefix.addAll(name);
}
/**
* Composes the name of this context with a name relative to this context.
*
* @param name
* a name relative to this context
* @param prefix
* the name of this context relative to one of its ancestors
* @return the composition of prefix and name
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public String composeName(String name, String prefix) throws NamingException {
return prefix + "/" + name;
}
/**
* Adds a new environment property to the environment of this context. If
* the property already exists, its value is overwritten.
*
* @param propName
* the name of the environment property to add; may not be null
* @param propVal
* the value of the property to add; may not be null
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Object addToEnvironment(String propName, Object propVal) throws NamingException {
return env.put(propName, propVal);
}
/**
* Removes an environment property from the environment of this context.
*
* @param propName
* the name of the environment property to remove; may not be
* null
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Object removeFromEnvironment(String propName) throws NamingException {
return env.remove(propName);
}
/**
* Retrieves the environment in effect for this context. See class
* description for more details on environment properties. The caller should
* not make any changes to the object returned: their effect on the context
* is undefined. The environment of this context may be changed using
* addToEnvironment() and removeFromEnvironment().
*
* @return the environment of this context; never null
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public Hashtable<?, ?> getEnvironment() throws NamingException {
return env;
}
/**
* Closes this context. This method releases this context's resources
* immediately, instead of waiting for them to be released automatically by
* the garbage collector. This method is idempotent: invoking it on a
* context that has already been closed has no effect. Invoking any other
* method on a closed context is not allowed, and results in undefined
* behaviour.
*
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public void close() throws NamingException {
if (!checkWritable()) {
return;
}
env.clear();
}
/**
* Retrieves the full name of this context within its own namespace.
* <p>
* Many naming services have a notion of a "full name" for objects in their
* respective namespaces. For example, an LDAP entry has a distinguished
* name, and a DNS record has a fully qualified name. This method allows the
* client application to retrieve this name. The string returned by this
* method is not a JNDI composite name and should not be passed directly to
* context methods. In naming systems for which the notion of full name does
* not make sense, OperationNotSupportedException is thrown.
*
* @return this context's name in its own namespace; never null
* @exception OperationNotSupportedException
* if the naming system does not have the notion of a full
* name
* @exception NamingException
* if a naming exception is encountered
*/
@Override
public String getNameInNamespace() throws NamingException {
throw new OperationNotSupportedException(sm.getString("namingContext.noAbsoluteName"));
// FIXME ?
}
// ------------------------------------------------------ Protected Methods
/**
* Retrieves the named object.
*
* @param name
* the name of the object to look up
* @param resolveLinks
* If true, the links will be resolved
* @return the object bound to name
* @exception NamingException
* if a naming exception is encountered
*/
protected Object lookup(Name name, boolean resolveLinks) throws NamingException {
// Removing empty parts
while ((!name.isEmpty()) && (name.get(0).length() == 0))
name = name.getSuffix(1);
if (name.isEmpty()) {
// If name is empty, a newly allocated naming context is returned
return new NamingContext(env, this.name, bindings);
}
NamingEntry entry = bindings.get(name.get(0));
if (entry == null) {
throw new NameNotFoundException(sm.getString("namingContext.nameNotBound", name, name.get(0)));
}
if (name.size() > 1) {
// If the size of the name is greater that 1, then we go through a
// number of subcontexts.
if (entry.type != NamingEntry.CONTEXT) {
throw new NamingException(sm.getString("namingContext.contextExpected"));
}
return ((Context) entry.value).lookup(name.getSuffix(1));
} else {
if ((resolveLinks) && (entry.type == NamingEntry.LINK_REF)) {
String link = ((LinkRef) entry.value).getLinkName();
if (link.startsWith(".")) {
// Link relative to this context
return lookup(link.substring(1));
} else {
return (new InitialContext(env)).lookup(link);
}
} else if (entry.type == NamingEntry.REFERENCE) {
try {
Object obj = NamingManager.getObjectInstance(entry.value, name, this, env);
if (entry.value instanceof ResourceRef) {
boolean singleton = Boolean
.parseBoolean((String) ((ResourceRef) entry.value).get("singleton").getContent());
if (singleton) {
entry.type = NamingEntry.ENTRY;
entry.value = obj;
}
}
return obj;
} catch (NamingException e) {
throw e;
} catch (Exception e) {
log.warn(sm.getString("namingContext.failResolvingReference"), e);
throw new NamingException(e.getMessage());
}
} else {
return entry.value;
}
}
}
/**
* Binds a name to an object. All intermediate contexts and the target
* context (that named by all but terminal atomic component of the name)
* must already exist.
*
* @param name
* the name to bind; may not be empty
* @param obj
* the object to bind; possibly null
* @param rebind
* if true, then perform a rebind (ie, overwrite)
* @exception NameAlreadyBoundException
* if name is already bound
* @exception javax.naming.directory.InvalidAttributesException
* if object did not supply all mandatory attributes
* @exception NamingException
* if a naming exception is encountered
*/
protected void bind(Name name, Object obj, boolean rebind) throws NamingException {
if (!checkWritable()) {
return;
}
while ((!name.isEmpty()) && (name.get(0).length() == 0))
name = name.getSuffix(1);
if (name.isEmpty())
throw new NamingException(sm.getString("namingContext.invalidName"));
NamingEntry entry = bindings.get(name.get(0));
if (name.size() > 1) {
if (entry == null) {
throw new NameNotFoundException(sm.getString("namingContext.nameNotBound", name, name.get(0)));
}
if (entry.type == NamingEntry.CONTEXT) {
if (rebind) {
((Context) entry.value).rebind(name.getSuffix(1), obj);
} else {
((Context) entry.value).bind(name.getSuffix(1), obj);
}
} else {
throw new NamingException(sm.getString("namingContext.contextExpected"));
}
} else {
if ((!rebind) && (entry != null)) {
throw new NameAlreadyBoundException(sm.getString("namingContext.alreadyBound", name.get(0)));
} else {
// Getting the type of the object and wrapping it within a new
// NamingEntry
Object toBind = NamingManager.getStateToBind(obj, name, this, env);
if (toBind instanceof Context) {
entry = new NamingEntry(name.get(0), toBind, NamingEntry.CONTEXT);
} else if (toBind instanceof LinkRef) {
entry = new NamingEntry(name.get(0), toBind, NamingEntry.LINK_REF);
} else if (toBind instanceof Reference) {
entry = new NamingEntry(name.get(0), toBind, NamingEntry.REFERENCE);
} else if (toBind instanceof Referenceable) {
toBind = ((Referenceable) toBind).getReference();
entry = new NamingEntry(name.get(0), toBind, NamingEntry.REFERENCE);
} else {
entry = new NamingEntry(name.get(0), toBind, NamingEntry.ENTRY);
}
bindings.put(name.get(0), entry);
}
}
}
/**
* Returns true if writing is allowed on this context.
*/
protected boolean isWritable() {
return ContextAccessController.isWritable(name);
}
/**
* Throws a naming exception is Context is not writable.
*/
protected boolean checkWritable() throws NamingException {
if (isWritable()) {
return true;
} else {
if (exceptionOnFailedWrite) {
throw new javax.naming.OperationNotSupportedException(sm.getString("namingContext.readOnly"));
}
}
return false;
}
}